Enhanced Purification of GST GFP Fusion Protein BIOC2000 Prac Report Studocu GST Tagged Protein Purification Protein Purification Kit Polyhistidine Tag GST Protein Purification Transglutaminase 2 crosslinks the glutathione S transferase tag, impeding proteinprotein interactions of the fused protein Experimental & Molecular Medicine PDF) An alternative easy method for antibody purification and analysis of protein protein interaction using GST fusion proteins immobilized onto glutathione agarose